"""
Case Type   : VIEW
Case Name   : 参数track_stmt_stat_level设为OFF,L1，查询statement_history记录的open语句存储过程的慢sql
Create At   : 2024/10/9
Owner       : lonely-dance
Description :
    1.设置参数
    2.创建表
    3.创建存储过程
    4.调用存储过程
    5.查询系统视图pg_stat_activity
    6.清理环境
Expect      :
    1.设置参数成功
    2.创建表成功
    3.创建存储过程成功
    4.调用存储过程成功
    5.statement_history记录调用存储过程的慢sql
    6.清理环境成功
History     :
"""
import unittest
import os
from testcase.utils.Logger import Logger
from testcase.utils.Constant import Constant
from testcase.utils.CommonSH import CommonSH
from testcase.utils.ComThread import ComThread
from yat.test import Node
from yat.test import macro


primary_sh = CommonSH('PrimaryDbUser')

@unittest.skipIf(3 != primary_sh.get_node_num(), '非1+2环境不执行')
class Analysis(unittest.TestCase):
    def setUp(self):
        self.log = Logger()
        self.log.info(f'---{os.path.basename(__file__)} start---')
        self.primary_sh = CommonSH('PrimaryDbUser')
        self.standby1_sh = CommonSH('Standby1DbUser')
        self.p_node = Node('PrimaryDbUser')
        self.s1_node = Node('Standby1DbUser')
        self.constant = Constant()
        self.database_name = 'test_track_stmt_stat_level'
        self.parameter1 = 'track_stmt_stat_level'
        self.parameter2 = 'log_min_duration_statement'
        self.primary_sh.execut_db_sql(f'create database {self.database_name};')

    def test_Analysis(self):
        text = '-----step1:设置参数 expect:成功-----'
        self.log.info(text)
        self.primary_sh.execute_gsguc('reload', self.constant.GSGUC_SUCCESS_MSG, "instr_unique_sql_count = 200000")
        res = self.primary_sh.execut_db_sql(f'show instr_unique_sql_count;')
        self.assertIn('200000', res, '执行失败:' + text)
        set_cmd = f'source {macro.DB_ENV_PATH};' \
                f'gsql -d {self.database_name} -p {self.p_node.db_port} -c ' \
                f'\"ALTER DATABASE {self.p_node.db_name} SET track_stmt_stat_level = \'OFF,L1\' ; ' \
                f'ALTER DATABASE {self.p_node.db_name} SET log_min_duration_statement = 1000 ;\";'
        set_res = self.p_node.sh(set_cmd).result()
        self.assertIn(self.constant.ALTER_DATABASE_SUCCESS_MSG, set_res, '执行失败:' + text)
        check_res1 = self.primary_sh.execut_db_sql(f'show {self.parameter1};')
        self.assertIn('OFF,L1', check_res1, '执行失败:' + text)
        check_res2 = self.primary_sh.execut_db_sql(f'show {self.parameter2};')
        self.assertIn('1s', check_res2, '执行失败:' + text)

        text = '-----step2:创建表数据 expect:成功-----'
        self.log.info(text)
        create_data = '''drop table if exists big_table;
            CREATE TABLE big_table (column1 INT, column2 VARCHAR(100)); 
            INSERT INTO big_table (column1, column2) SELECT generate_series(1, 10000000),
            'data' || generate_series(1, 10000000);'''
        self.log.info(create_data)
        result = self.primary_sh.execut_db_sql(create_data)
        self.log.info(result)
        self.assertIn(self.constant.CREATE_TABLE_SUCCESS, result, '执行失败:' + text)
        self.assertIn('INSERT 0 10000000', result, '执行失败:' + text)

        text = '-----step3:创建存储过程 expect:成功-----'
        self.log.info(text)
        create_procedure = '''
            CREATE OR REPLACE PROCEDURE test_exec_open0016() AS 
                cur SYS_REFCURSOR; 
                row RECORD; 
            BEGIN 
                OPEN cur FOR SELECT column1, column2 FROM big_table WHERE column1 = 9909; 
                LOOP 
                    FETCH cur INTO row; 
                    EXIT WHEN NOT FOUND; 
                    RAISE NOTICE 'id: %, name: %', row.column1, row.column2; 
                END LOOP; 
                CLOSE cur; 
            END; 
        '''
        self.log.info(create_procedure)
        result = self.primary_sh.execut_db_sql(create_procedure)
        self.log.info(result)
        self.assertEqual(self.constant.CREATE_PROCEDURE_SUCCESS_MSG, result, '执行失败:' + text)

        text = '-----step4:调用存储过程 expect:成功-----'
        self.log.info(text)
        sql_cmd = '''call test_exec_open0016();'''
        sql_res = self.primary_sh.execut_db_sql(sql_cmd)
        self.log.info(sql_res)
        self.assertIn('(1 row)', sql_res, '执行失败:' + text)

        text = '-----step5:statement_history expect:statement_history记录调用存储过程的慢sql-----'
        self.log.info(text)
        sql_cmd = f'''select * from statement_history where db_name = '{self.p_node.db_name}' order by finish_time desc;'''
        sql_result = self.primary_sh.execut_db_sql(sql_cmd, dbname='postgres')
        self.log.info(sql_result)
        self.assertIn('test_exec_open0016()', sql_result,
                      '执行失败:' + text)

    def tearDown(self):
        text = '-----step6:清理环境 expect:成功-----'
        self.log.info(text)

        self.primary_sh.execute_gsguc('reload', self.constant.GSGUC_SUCCESS_MSG, "instr_unique_sql_count = 100")
        res = self.primary_sh.execut_db_sql(f'show instr_unique_sql_count;')
        self.assertIn('100', res, '执行失败:' + text)

        set_cmd = f'source {macro.DB_ENV_PATH};' \
                  f'gsql -d {self.database_name} -p {self.p_node.db_port} -c ' \
                  f'\"ALTER DATABASE {self.p_node.db_name} SET track_stmt_stat_level = \'OFF,L0\' ; ' \
                  f'ALTER DATABASE {self.p_node.db_name} SET log_min_duration_statement = 1800000 ;\";'
        set_res = self.p_node.sh(set_cmd).result()
        self.assertTrue(set_res.count(self.constant.ALTER_DATABASE_SUCCESS_MSG) == 2, '执行失败:' + text)
        check_res1 = self.primary_sh.execut_db_sql(f'show {self.parameter1};')
        self.assertIn('OFF,L0', check_res1, '执行失败:' + text)
        check_res2 = self.primary_sh.execut_db_sql(f'show {self.parameter2};')
        self.assertIn('30min', check_res2, '执行失败:' + text)

        sql_cmd = f'''
        drop database {self.database_name};
        drop table if exists big_table; 
        drop procedure if exists test_exec_open0016; 
        '''
        self.log.info(sql_cmd)

        sql_result = self.primary_sh.execut_db_sql(sql_cmd)
        self.log.info(sql_result)
        self.assertTrue(self.constant.DROP_PROCEDURE_SUCCESS_MSG in sql_result
                        and self.constant.DROP_DATABASE_SUCCESS in sql_result
                        and self.constant.DROP_TABLE_SUCCESS in sql_result, '执行失败:' + text)




